quartet
         n 1: the cardinal number that is the sum of three and one [syn:
               {four}, {4}, {IV}, {tetrad}, {quatern}, {quaternion},
               {quaternary}, {quaternity}, {quartet}, {quadruplet},
               {foursome}, {Little Joe}]
         2: four performers or singers who perform together [syn:
            {quartet}, {quartette}]
         3: a set of four similar things considered as a unit [syn:
            {quartet}, {quartette}, {quadruplet}, {quadruple}]
         4: four people considered as a unit; "he joined a barbershop
            quartet"; "the foursome teed off before 9 a.m." [syn:
            {quartet}, {quartette}, {foursome}]
         5: a musical composition for four performers [syn: {quartet},
            {quartette}]

English Dictionary: quartet	by the DICT Development Group
From WordNet (r) 3.0 (2006) [wn]:
quartette n four performers or singers who perform together [syn: quartet, quartette] a set of four similar things considered as a unit Synonym(s): quartet, quartette, quadruplet, quadruple four people considered as a unit; "he joined a barbershop quartet"; "the foursome teed off before 9 a.m." Synonym(s): quartet, quartette, foursome a musical composition for four performers Synonym(s): quartet, quartette
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Quartation \Quar*ta"tion\, n. [L. quartus the fourth: cf. F.       quartation. So called because usually enough silver is added       to make the amount of gold in the alloyed button about one       fourth.] (Chem. & Assaying)       The act, process, or result (in the process of parting) of       alloying a button of nearly pure gold with enough silver to       reduce the fineness so as to allow acids to attack and remove       all metals except the gold; -- called also {inquartation}.       Compare {Parting}.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Quartet \Quar*tet"\, Quartette \Quar*tette"\, n. [It. quartetto,       dim. of quarto the fourth, a fourth part, fr. L. quartus the       fourth. See {Quart}.]       1. (Mus.)             (a) A composition in four parts, each performed by a                   single voice or instrument.             (b) The set of four person who perform a piece of music in                   four parts.          2. (Poet.) A stanza of four lines.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Quartet \Quar*tet"\, Quartette \Quar*tette"\, n. [It. quartetto,       dim. of quarto the fourth, a fourth part, fr. L. quartus the       fourth. See {Quart}.]       1. (Mus.)             (a) A composition in four parts, each performed by a                   single voice or instrument.             (b) The set of four person who perform a piece of music in                   four parts.          2. (Poet.) A stanza of four lines.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Quiritation \Quir`i*ta"tion\, n. [L. quiritatio, fr. quiritare       to raise a plaintive cry, v. freq. fr. queri to complain.]       A crying for help. [Obs.] --Bp. Hall.